beyerdynamic DT-287 PV MK II, one ear-headset, headphone: dynamic, closed, circumaural, impedance 250 Ohms, pressure level 100 dB, frequency range 10 - 30000 Hz, weight 240g, microphone: condenser, cardioid polar pattern, impedance 300 Ohms, frequency range 40-20000 Hz, colour black, attention: cable is not included, please order optional !